Magazine

Does cardio really eat your muscle? The interference effect is real but moderate, and it hinges on modality, frequency and duration. What the studies show and how to combine endurance and strength training without sacrificing your strength and muscle gains.

Split is seen as the serious route, full-body as beginner stuff. The head-to-head evidence disagrees: at equal weekly volume, both build the same muscle. What actually matters, and which split fits your training days, explained with the research.